A bioconjugated design for amino acid-modified mesoporous silicas as effective adsorbents for toxic chemicals

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題名:	A bioconjugated design for amino acid-modified mesoporous silicas as effective adsorbents for toxic chemicals
作者:	高憲明;Shieh, Fa-Kuen;Hsiao, Chia-Teng;Wu, Jhe-Wei;Sue, Yu-Chain;Bao, Ya-Ling;Liu, Yi-Hsin;Wan, Lei;Hsu, Ming-Hua;Deka, Juti Rani;Kao, Hsien-Ming
貢獻者:	理學院化學學系
關鍵詞:	activated carbon;Adsorbents;Adsorption;Amino acid;Amino acids;Amino Acids - chemistry;Antidotes - chemistry;Applied sciences;Aqueous solutions;Bioconjugated;Charcoal - chemistry;Chemical engineering;clinical trials;Exact sciences and technology;Herbicides;Hydrogen-Ion Concentration;Jewelry;Materials Testing;Mesoporous silica;Models, Chemical;Nitrogen - chemistry;Paraquat;Paraquat (PQ);Paraquat - analogs & derivatives;Paraquat - analysis;Paraquat - isolation & purification;Paraquat - poisoning;phenylalanine;Pollution;Porosity;silica;Silicon dioxide;Silicon Dioxide - chemistry;Solvents - chemistry;Temperature;Time Factors;toxic substances;tryptophan;Water Pollutants, Chemical - analysis;Water Pollutants, Chemical - chemistry;Water Purification - methods;X-Ray Diffraction
日期:	2013-09-15
上傳時間:	2026-04-21 14:12:23 (UTC+8)
出版者:	Elsevier;Kidlington: Elsevier B.V
摘要:	摘要： The development of functionalization of mesoporous silica with amino acid for removal of herbicide Paraquat (PQ), efficiency 53%, is reported. •A general method for functionalization of SBA-15 mesoporous with amino acid.•Efficiently detoxify aqueous solutions contaminated with herbicides, PQ and EVB.•Amino acid moieties enhancing the removal yield of herbicides in water solutions.•Conjugates with good herbicide removal efficiency. A general synthetic method for functionalization of mesoporous silica with amino acid has been developed. The carboxylic acid functionalized SBA-15 was conjugated with l-phenylalanine (Phe) and l-tryptophan (Trp) to obtain nontoxic amino acid-conjugated functionalized mesoporous silica materials. The materials were used as adsorbents for the removal of the herbicide Paraquat (PQ) and its analog, ethyl viologen dibromide (EVB) from aqueous solutions. In comparison to the commercially available activated carbon adsorbents, the silica-based adsorbents prepared in this study exhibited relatively higher PQ removal efficiency in aqueous solutions at room temperature and pH 7.0. The silica-based adsorbents, pendant with amino acid moieties exhibited greater adsorption capacities toward PQ and EVB than the analogs but without the amino acid moiety, suggesting that there is a benefit for the enhanced π–π interaction between the aromatic groups of the conjugated amino acid moieties and the adsorbate. This bioconjugated method developed here provides a promising new tool to synthesize new materials for detoxification of herbicides in clinical trials. 其他題名： J Hazard Mater 出版者： Kidlington: Elsevier B.V 出版日期： 2013-09-15 出處： Journal of hazardous materials, 2013-09, Vol.260, p.1083-1091 版權： 2013 Elsevier B.V. 版權： 2014 INIST-CNRS 版權： Copyright © 2013 Elsevier B.V. All rights reserved. 識別號： ISSN: 0304-3894 識別號： ISSN: 1873-3336 識別號： EISSN: 1873-3336 識別號： DOI: 10.1016/j.jhazmat.2013.06.066 識別號： PMID: 23892316 識別號： CODEN: JHMAD9
顯示於類別:	[化學學系] 期刊論文

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